Description
The Trane CNT03511 Hi-Limit Control Switch 120F is a temperature-sensitive safety control to monitor and regulate heat levels. Set to automatically reset, it interrupts electrical operation when it exceeds the specified limit and restores circuit continuity once conditions return to the normal range. This control switch is commonly installed in the furnaces, air handlers, rooftop units, and packaged HVAC systems where overheating protection is required for safe equipment operation. As part of the heating assembly, it supports preventing excessive temperature buildup that could affect in the internal components, airflow performance, or overall heating operations.
